similarity

(noun)

noun

1. the quality of being similar

Definition categories: attribute, sameness

2. a Gestalt principle of organization holding that (other things being equal) parts of a stimulus field that are similar to each other tend to be perceived as belonging together as a unit

Definition categories: thought

Sentences with similarity as a noun:

- Hardly is there a similarity detected between two or three facts, than men hasten to extend it to all. — Sir W. Hamilton.